Improvement in apparatus for cooling soda-water and other liquids



aan e te;

-ALVAN Davis Puerca, or Boston, MASSAQMSQTTS.

Letters Patent No. 109,942, dated December 6, 1870.

IMPROVEMENT IN APPARATUS FOR COOLING SODA-WAT-R AND OTHER LIQUIDS.

The Schedule referred toin these Letters Patent and vmaking part ofithe same.

To all to whom it may concern,

Be it known that I, ALVAN Davis Poteau, of Boston, in the county of Suffolk and Commonwealth of' Massachusetts, have made an invention of certain new anti useful Improvements in Apparatus for -Refrigor-ating Liquids; and do hereby declare the following to be full, clear, and exact description thereof, due reference being had to the. accompanying drawingmaking part ot' this specitication, andin which- Figure lis a vertical section ot an apparatus for carrying out myinvention as contained within the rc' fri gerating-chamber ot" a soda-fountain.

Figure 2 is aperspective view of such apparatus.

'Ihisinventiou relates to means for economizing y the waste ot" ice used in cooling liquids, and consists, primarily, in conducting the liquid t'o be refrigerated through a preliminary or auxiliary series or coil of pipes or cylinders, situated within the ice-water which accnriulates from the melting ofthe ice with which the primary cylinders or coolers are packed, or otherwise taking advantage of the low degree of temperatureot' such ice-water to reduce the temperatur-cof the soda-water or other liquid previous to its entering the primary coolers which receive cold directly Afrom the icc. y.

lhe drawing herewith presented, and which illustrates one method or means of carrying out the principle whicll characterizes my invention, represents, at a b c (l, a cluster of closed cylinders, arranged, preferably, in a horizontal plane, and being each connected and' communicating with its neighbor by a pipe, e, which unites the two diagonally-opposite ends of every two adjacent cylinders, these pipes extending a short distance into, the cylinder, and otherwise formed and operating as exhibited in Letters Patent ofthe United States numbered 39,587, andissued to me on the 18th day of August, 1863, for improved soda-water cooler.

Above these cylinders a b c d, which I term the wet or preliminary coolers, I-,dispose a second series of similarly-formed and furnished cylinders, which arer shown at a b c' d', thelIranch-pipes uniting them being shown at e' e', and the two series of cylinders heilig united by. a connecting-pipe, g. v

Theinduction-pipe, by which the liquid enters the lower cooler, iis shown at le, and the eduction-pipe, by which such liquid escapes from the uppermost coolers, is shown at l.

The outline of the refi'igerating-chamber of the fountain in which these clusters of cylinders are' situated, is shown at f, the disposition of these cylinders, with respect to the waste-water outlet, being such thatl the lower or preliminary series shall be lnearly ouquite immersed in the water which accumulates from the melting of the ice which surrounds the up- Vper coolers.

' It is not necessary't-hat the .preliminary cylinders or coolers, whether a series of parallel straight cylinders, as shown in the drawing, or a worm, or coil,'or irregular group of pipe, should be placed in the same chamber with the primary coolers, as they may be disposed in another portion of the fountain, or in a distinct vessel to which the ice-water is suiiered to flow, but the two series, wherever placed, must be in free communication with each other, in order that liquid may freely course through both.

As the tendency of the droppings of the ice is to i constantly reduce the temperature of the water accumalating from them in the tankbelow', in which the preliminary coolers are immersed, and as' the tendency of the liquid entering and passing through these coolers is to raise the temperature of this water, it results that an equilibrium of temperature is secured and maintained upon such liquid ot'` a. much lower de grec than that possessed by it when entering the preliminary coolers.

rIhe general temperature of the liquid upon entering the preliminary coolers may be set yat about 600 Fahrenheit, and, upon tinally leaving the fountain, at 350, thus leaving 25@ of cold vto be obtained by the direct action of ice under the present system ot' refrigerating liquids. 1

I have found, by practical experiment, that the effeet of the icecold water in which the preliminary coil or cluster of coolers is immersed reduces the telnpcrature ot' the liquid to be reti'igerated 150, or approximately so, thus leaving but 100 of cold to be obtained direct-ly by the ice upon theprimary or upper coolers. y i

I thus ecouomize the-waste o'fthe ice to an extent directly equal to the difference of 150v of cold obtained by the ice-water, or twenty-ve per cent. 1

1 Although, as before remarked, I have represented in the annexed drawing a series of straight parallel cylinders or coolers united by a number ot' pipes, 1

sha-ll'probahly employ two or more convolute or spiral coils or worms, as being better adapted to perform the work, and less expensive than the former.

Claims; I

1. An apparatus for cooling liquids, in which the liquid to be cooled is first conducted through pipes immersed in the ice-water accumulating fromthe icelneltings before entering the pipes cooled directly by the ice, substantially as herein shown and described.

2. An apparatus for rcfrigeratingliquids, composed of two clusters or coils of cylinders or pipes, one otwhich receives a reduction ot' tem eratnre directly from the ice,and the other from the ice-water, which results from the melting of said ice, in the manner and operating substantially as herein explained.

A. D. PUFFER.

Witnesses:

FRED. CURTIS, EDWARD GRIFFITH'. 

